Casting machine



Patented Aug. 19, 1924.'

Unirse STATES JOHN NEWMAN, or OAKLAND, CALIFORNLAQ CASTING MACHINE.

Applicationlcd May 3,1922. Sera1iNo.i559,580.

To all whom t may concern: i

Be it known that I, JOHN NEWMAN, a

citizen of the United States, residing'atlO.`

Clay Street, in the city of Oakland, county of Alameda, and State ofCalifornia,` have invented a new and 'useful Casting Machine, of which the yfollowing is a specification.

This invention relates in general to cast- And another object is to furnish chilled castings with the same apparatus lwhen desired.

To accomplish the above objects my machine includes a two-piece :trame in which is supported thek two halves of a bipartite mold and by which the same are opened and closed, means for performing those operations,

means for adjusting and Securing the halvesy of the mold in position, and means for so opening the molds after the casting opera-` tion, that the contents will be loosened there in and drop out into the open space between the frame legs.

Other features of the invention will be set forth hereinafter, in connection with the accompanying one sheet of drawings, in which I have illustrated the invention as applied to a specific purpose, to wit; the casting of sash weights.

Figure l is a plan of the machine closed, one corner of the ligure being in section to show interior construction, the section being taken on the line C C of Figure 2.

Figure 2 is a side elevation of the machine open, a section taken on line B-B of Figure l being broken away.

Figure 3 is a sectional elevation of the machine, the section being taken on line A-A of Figure 1, the lever, arm and collar being shown in full. v

Figure 4 is a partial cross-section through a portion of an individual mold von a larger scale than the other figures, showing the means for forming the eye of a sash weight, and the means for supporting a ferrule'for that purpose.

In the Figures; YAn upstanding base l is provided at its upper part with 'an L-shaped skeleton frametorlask 2 shown clearly in Figure 3, "and 1. in which issupeportedthe halt mold 3, madein this'instance of chilled cast iron,"the frame, being skeletonized to "facilitate the circulation'ot air aroundthe f ,mold for cooling purposes. The hal-f mold 3 is supported in the frame 2 and out yof PATENT oFFic`jE.

`r'contact therewith, by the bolts land 5. The

bolts 4l are in the nature ofl square-headed y machine bolts engaging ,'lsockets inthe body of the mold, and projecting outward through the frame ,2, where they maybe engaged by nuts, as shown, and by which the mold 4is yieldably held to the Jframe 2r against tapjbolts 5, tapped through solid yparts of frame 2, each boltyhavingits end bearing against the exterior; of ythe 'mold The second halt 6 of the mold is similarly mounted in a similar L-shap'ed "frame 7. This frame has ya downward extending arm 8 `at each end,terminating in a rounded extremity 9 resting in a sockety 10, a part of the base l. The members 9 and 10 are eccentric to, or out of line with the parting A or meeting facesll of the molds, thekfunc-U tion of which is to give the mold 6 a slighty movement upward when' opened, which loosens the castingand facilitate/s its drop ping out of the mold.

` The final adlulstneltof the molds 3 /Jvndi 6in the `framesi2 and 7, for lalignimg and registering their meeting faces/11,'is accomplished by vthe tap bolts adapfted to bear against the sides, ends and bottom of the molds. After the molds are positioned, the machine bolts l are tightened and the four tap bolts on each end 'of the machine are then backed away as shown in Figure l This construction aiords uniform expansion in all directions without any undue stresses acting' in the mold or frame members.

The halt 6 ot the mold and its contiguous parts, is moved toward and from the halt 3, as in closing and opening, by a lever l2, pivoted at 13,'to arm members 14 provided for that purpose. The short arm l5 of the lever may bear against the outer central surface' of frame 7, and may be provided -with a stud 16, which engages a hook plate 17, to assist in pulling the mold members apart.

To produce a clean and smooth hole in the weightcasting made "by the above mecha- ,Y

ness to chate the cord rove therethrough eventually, I employ a ferrule 18 of thin metal shown in Figure 4, supported by va two part pin 19 and 20, the pins-being preferably made of chilled iron, and secured in place by wedges 21. The inner'ends of .the-pins are shaped to fit the interior of the ferrule'.

In operation, the mechanism being in the open position as shown in Figure 2, the ferrules 18 areslipped over the ends ofthe pins. Thel handleA 12 is then pulled down which closes the molds-as shownin Figures l and 3. Thev casting metal is then poured into the gate 22V and ills the individual moulds through the holes shown, the, moltenmetal uniting with the ferrules. IVhen the molds are opened, by a reverse movement of handle 12, the motio-n imparted to mold member 6, coupledwith its additionall slight movement upward due vto the eccentric position of socket 10, loosens the casting from the mold members andit drops out into the open space ybetween the fra-me members, where it 1s easily accessible for raking away.

Having illustrated anddescribed my castingmachine in its preferred form, it is to be understood that Ido not wish to belimited to the precise construction shown and described, but Wish to embrace all lvariable arrangements and modifications that come within the spirit and scopel of the invention supported in adjusted position by holding bolts tensioned against said tap bolts.

justed with relation to each other and to the stationary frame and movable frame by vtap bolts, and adapted to be rigidly supported in adjusted position by holding bolts.

3. In a casting machine, mold members in lcombination with pin members and a errule' supported by said pin members` in the cavity of the-mold, said errule adapted to vbecome a part of the resulting casting, said mold adapted toopen by one of said members moving laterally, and means lfor causing said lateral movement.

t. A casting machine for sash weights, comprising a stationary frame and mold member, a movable supporting 'frame and mold member; said members being adjustable vertically, longitudinally and laterally with relation to the stationary and movable frame and out of Contact therewith by tap bolts, means for. holding` said members rigidly in adjusted position; saidmovable frame and mold member adapted to be manually operated to swing said, movable iframe and mold member away from the stationary frame' and moldinember.

5. A casting machine for sash weights comprising a two piece frame, one member of which is stationary and the other movable, a bipartite mold 'having a plurality of cavities in the form of thewconverse of a sash weight, each oi' saidr'ame members supportingan half'of said bipartite mold, vertical, longitudinal and lateral adjusting means for saidA bipartite mold, and means carried by the stationary member toy manually operate said rmovable member and mold to swing said movable member slightly up and away from said stationary member to part the mold.

JoHN NEWMAN. 

